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To get acquainted with IntelliJ IDEA, you can download and install its trial version for free. This trial version is available for 30 days, whereupon you need to obtain and register a license.

Hardware requirements

  • 1 GB RAM minimum, 2 GB RAM recommended
  • 300 MB hard disk space + at least 1 GB for caches
  • 1024x768 minimum screen resolution

System requirements

JRE 1.8 is bundled with distributions for all platforms. You don't need any Java to be installed on your machine in order to run IntelliJ IDEA.

JDK is not required for developing Web, PHP, Ruby or Python projects in IntelliJ IDEA. The standalone JDK installation is required for Java development only.

However, you CANNOT use our bundled JRE for Java development.

Windows

System RequirementsInstallation
  • Microsoft Windows 10/8/7/Vista/2003/XP (incl.64-bit)
  • To develop Java applications with IntelliJ IDEA, install JDK version according to your project requirements.

    Note that you can't use JRE bundled with IntelliJ IDEA for development, only to run the IDE itself.
  1. Download IntelliJ IDEA from the Download page.
  2. Run the ideaIC or ideaIU-*.exe file that starts the Installation Wizard.
  3. Follow all steps suggested by the wizard. Pay special attention to the corresponding installation options.

OS X

System Requirements Installation
  • OS X 10.5 or higher, including 10.10
  • Only 64-bit OS X is supported.
  • To develop Java applications with IntelliJ IDEA, install JDK version according to your project requirements.

    Note that you can't use JRE bundled with IntelliJ IDEA for development, only to run the IDE itself.
  1. Download the ideaIC or ideaIU-*.dmg OS X Disk Image file from the Download  page.
  2. Double-click the downloaded ideaIC or ideaIU-*.dmg OS X Disk Image file to mount it.
  3. Copy IntelliJ IDEA to your Applications folder.

Note:  Open JDK 1.8 customized by the JetBrains team is bundled in OS X distribution.

Linux

System RequirementsInstallation
  • OS Linux
  • KDE, GNOME or Unity DE desktop
  • To develop Java applications with IntelliJ IDEA, install JDK version according to your project requirements.

    Note that you can't use JRE bundled with IntelliJ IDEA for development, only to run the IDE itself.
  1. Download the ideaIC or ideaIU-*.tar.gz file from the Download page.
  2. Unpack the ideaIC or ideaIU-*.tar.gz file to an empty directory using the following command: 
    tar xfz ideaIC or ideaIU-*.tar.gz
  3. Because running IntelliJ IDEA from wherever you downloaded the file to may be inconvenient, it is recommended that you move the extracted or unpacked archive folder to the desired location using the mv command in one of the following formats: 
    • mv <path to extracted archive folder> <new archive folder>
      For example: 
      mv /downloads/ideaIC or ideaIU-* my/desired/location
    • mv <path to ideaIC or ideaIU-*.tar.gz> <new archive folder>
      For example: 
      mv /downloads/ideaIC or ideaIU-*.tar.gz my/desired/location
  4. Switch to the bin directory in the new location: 
    cd <new archive folder>/ideaIC or ideaIU-*/bin
    For example, 
    cd my/desired/location/ideaIC or ideaIU-*/bin
  5. Run ideaIC or ideaIU.sh from the bin subdirectory.

Note: Open JDK 1.8 customized by JetBrains is bundled in Linux distribution. In case you are not happy with it, feel free to switch to another JRE installed in your system.